My Uline Model 2115-RB mini refrigerator keeps beeping and giving the error code E3, which means the door is open for more than 20 minutes. This is not true, door is shut tight. Can this be fixed?

SOURCE: Jenn Air Oven Model WM27260B Error code F7 plus beeping

f7 is a shorted key-stuck function on control

SOURCE: E3 Error

here are the codes i found

E-1 Electrodes were not firmly grasped. Grasp the electrodes correctly.

E-3 Hands are dry. Slightly moisten hands with
a wet towel.

E-4 Body Fat Percentage and BMI values are outside themeasurable range. verify your personal data is
correct.

E-5 and E-6 Irregular Operation Turn the unit off, then on. Take another measurement. If the error occurs again contact Customer Service at 800-634-4350
have a great weekend!

SOURCE: Kenwood kdw243a dishwasher has an e3 error code

i have same prob,seen this elsewhere folks. apparently it's the temp sensor which MAY have failed. http://www.howtomendit.com/answers.php?id=134096
has to be cheaper than an expensive call-out and worth a try.

SOURCE: kitchen aid open door sensor alarm keeps going off door is closed

Open door and turn power off then on twice. Then press the Overtemp reset.

SOURCE: We are getting error code E3. What does this mean

Looks like you have either a stuck drum (does not spin) or an electrical fault that make the washer think the drum is not moving.

From a 2006 Technical Bulletin:

E3: Machine control is attempting to drive the motor but is not seeing any tach response. Visual Check shows motor is not moving. (Locked or Hall Sensor fault.)

Specifically, it could be:

1. Spin drum stuck – Verify that the spinner moves freely to eliminate this cause.
2. Hall Sensor (integral part of motor) fails or is loose – When the Hall Sensor fails or becomes dislodged, the control doesn't recognize that the motor is spinning and shuts down. The result will likely be an “E3” code in the worst case, or “SUdS” if it is only getting a partial rpm reading. Check wire harness connector(s) to motor.

Unless you are really overloading your machine you likely have an electrical fault, or a failure in the drive train--especially if the problem is intermittent. Probably time to call in a technician.